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Connecting to the database fails with ORA-12547, Ora-600 [Ksmlsge1], ORA-27123, Error 13 (Doc ID 453930.1)

Last updated on AUGUST 04, 2018

Applies to:

Oracle Database - Enterprise Edition - Version 10.1.0.4 and later
Information in this document applies to any platform.
***Checked for relevance on 04-Jul-2013***

Symptoms

Connecting to the database through sqlplus as SYSDBA fails with

ERROR:
ORA-12547: TNS:lost contact

 
The alert log shows a repetition of errors like below:

<timestamp>
Errors in file <$ORACLE_HOME>/udump/<sid>_ora_<ospid>.trc:
ORA-00600: internal error code, arguments: [ksmlsge1], [], [], [], [], [], [], []
ORA-27123: unable to attach to shared memory segment
IBM AIX RISC System/6000 Error: 13: Permission denied
<timestamp>
Errors in file <$ORACLE_HOME>/udump/<sid>_ora_<ospid>.trc:
ORA-00600: internal error code, arguments: [ksmlsge1], [], [], [], [], [], [], []
ORA-27123: unable to attach to shared memory segment
IBM AIX RISC System/6000 Error: 13: Permission denied
<timestamp>
Errors in file <$ORACLE_HOME>/udump/<sid>_ora_<ospid>.trc:
ORA-00600: internal error code, arguments: [ksmlsge1], [], [], [], [], [], [], []
ORA-27123: unable to attach to shared memory segment
IBM AIX RISC System/6000 Error: 13: Permission denied


Oracle user's umask is correctly set to 022.
The access permission for $ORACLE_HOME/bin/oracle is correctly set to 6751.

The call stack trace includes functions as below:

... ksedmp ksfdmp kgerinv kgesinv ksesin ksmlsge ksmlsg opiino opiodr opidrv sou2o main ...

Cause

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In this Document
Symptoms
Cause
Solution

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